diff --git a/pkgs/development/python-modules/cytoolz/default.nix b/pkgs/development/python-modules/cytoolz/default.nix
index 7fb6f94d79be..024470be0827 100644
--- a/pkgs/development/python-modules/cytoolz/default.nix
+++ b/pkgs/development/python-modules/cytoolz/default.nix
@@ -6,35 +6,35 @@
   pytestCheckHook,
   cython,
   setuptools,
+  setuptools-git-versioning,
   toolz,
-  python,
-  isPy27,
 }:
 
 buildPythonPackage rec {
   pname = "cytoolz";
-  version = "1.0.1";
+  version = "1.1.0";
   pyproject = true;
 
-  disabled = isPy27 || isPyPy;
+  disabled = isPyPy;
 
   src = fetchPypi {
     inherit pname version;
-    hash = "sha256-icwxYbieG7Ptdjb3TtLlWYT9NVFpBPyHjK4hbkKyx9Y=";
+    hash = "sha256-E6e/JUw8DSixLiKQuCrtDwl3pMKiv4SFT83HeWop87A=";
   };
 
   nativeBuildInputs = [
     cython
     setuptools
+    setuptools-git-versioning
   ];
 
-  propagatedBuildInputs = [ toolz ];
+  dependencies = [ toolz ];
 
-  # tests are located in cytoolz/tests, however we can't import cytoolz
-  # from $PWD, as it will break relative imports
+  # tests are located in cytoolz/tests, but we need to prevent import from the cytoolz source
   preCheck = ''
-    cd cytoolz
-    export PYTHONPATH=$out/${python.sitePackages}:$PYTHONPATH
+    mv cytoolz/tests tests
+    rm -rf cytoolz
+    sed -i "/testpaths/d" pyproject.toml
   '';
 
   disabledTests = [